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December Weather in Ayios Ioannis, Greece

Last updated: August 23, 2025

In December, the average temperature in Ayios Ioannis, Greece is a mild 12°C (53°F). Expect temperatures to range from a brisk 2°C (37°F) at their lowest to a pleasant 21°C (70°F) at their peak. With an average precipitation amount of 99 mm (3.9 in) over 12 days, it’s wise to keep an umbrella handy! Additionally, the air tends to be quite humid, with an average humidity level of 81%.

December Temperature in Ayios Ioannis

In December in Ayios Ioannis, the average temperature is 12°C (53°F). Maximum temperatures can reach 21°C (70°F), while minimums can drop as low as 2°C (37°F). It's a great time to visit Ayios Ioannis if you enjoy mild weather and the chance to explore outdoor activities without the heat.

December Weather in Ayios Ioannis: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ayios Ioannis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ayios Ioannis, December typically has an average temperature of 12°C (53°F), with highs reaching up to 21°C (70°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec485153586774797974665953
Data source: Temperature data for Ayios Ioannis generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Ayios Ioannis

In Ayios Ioannis in December, the total precipitation amount is 99 mm (3.9 in) recorded over a span of 12 days.

December Precipitation Trends in Ayios Ioannis

The chart displays monthly precipitation patterns in Ayios Ioannis, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Ayios Ioannis, December typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec938167583733231133576699
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ayios Ioannis

In Ayios Ioannis in December, humidity is 81%. With an average temperature of 12°C (53°F), this humidity feels like a chilly dampness enveloping you, making outdoor activities uncomfortable and requiring layers to stay warm while you explore.

December Average Humidity in Ayios Ioannis

This chart illustrates the average monthly humidity levels in Ayios Ioannis, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ayios Ioannis is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%78%76%70%71%61%57%51%58%73%79%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ayios Ioannis

In Ayios Ioannis in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Ayios Ioannis, you can check the information here.

Maximum UV Index Levels in Ayios Ioannis for December

The chart shows the monthly maximum UV Index (UVI) for Ayios Ioannis in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Ayios Ioannis typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101010108743
Data source: Ayios Ioannis December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Ayios Ioannis Compares to Other Months

Weather in Ayios Ioannis varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ayios Ioannis, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Ayios Ioannis, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)93 mm (3.7 inches)82%moderate
February Weather10°C (51°F)81 mm (3.2 inches)78%moderate
March Weather12°C (53°F)67 mm (2.6 inches)76%high
April Weather14°C (58°F)58 mm (2.3 inches)70%very high
May Weather19°C (67°F)37 mm (1.5 inches)71%very high
June Weather23°C (74°F)33 mm (1.3 inches)61%very high
July Weather26°C (79°F)23 mm (0.9 inches)57%very high
August Weather26°C (80°F)11 mm (0.4 inches)51%very high
September Weather23°C (74°F)33 mm (1.3 inches)58%very high
October Weather19°C (66°F)57 mm (2.3 inches)73%high
November Weather15°C (59°F)66 mm (2.6 inches)79%moderate
December Weather12°C (53°F)99 mm (3.9 inches)81%moderate

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